CN204069063U - A kind of mobile phone - Google Patents

A kind of mobile phone Download PDF

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Publication number
CN204069063U
CN204069063U CN201420423563.7U CN201420423563U CN204069063U CN 204069063 U CN204069063 U CN 204069063U CN 201420423563 U CN201420423563 U CN 201420423563U CN 204069063 U CN204069063 U CN 204069063U
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China
Prior art keywords
pin
chip
input
earphone
mobile phone
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CN201420423563.7U
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Chinese (zh)
Inventor
孙家训
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ZTE Corp
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ZTE Corp
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Priority to CN201420423563.7U priority Critical patent/CN204069063U/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/04Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091Details not provided for in groups H04R1/1008 - H04R1/1083
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/03Connection circuits to selectively connect loudspeakers or headphones to amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05Detection of connection of loudspeakers or headphones to amplifiers

Abstract

The utility model provides a kind of mobile phone, solves the less problem causing outer playback matter poor of existing Mobile phone horn cavity.The utility model comprises: the compatible circuit be connected with earphone jack, and compatible circuit comprises: the earphone socket with input pin and output pin; The audio coding decoding codec chip be connected with earphone socket input pin, codec chip, according to the resistance value of earphone socket input pin, determines the external equipment that earphone socket inserts; The application processor AP chip be connected with codec chip; The analog switch chip be connected with AP chip, its output pin is connected with the output pin of earphone socket, and input pin comprises external speaker input pin and earphone input pin; AP chip, when external equipment is external speaker, controls external speaker input pin and is connected with codec chip; AP chip, when external equipment is earphone, controls earphone input pin and is connected with codec chip.The utility model can carry out the switching between earphone and external speaker, has high-performance playback.

Description

A kind of mobile phone
Technical field
The utility model relates to communication technical field, particularly relates to a kind of mobile phone.
Background technology
Mobile phone, as the communications and entertainment instrument of people's daily life almost everybody indispensability, has become a part indispensable in life.
Along with the develop rapidly of science and technology, use mobile phone to play music and film, become the mode of amusing and diverting oneself that people's daily life is very important.User is to cell-phone function, and the requirement of putting wave volume and tonequality aspect is particularly also more and more higher.
For mobile phone, the principal element affecting broadcast sound volume and tonequality is the performance of horn single body and the size of speaker cavity.Because the acoustical power of mobile phone speaker radiation is larger, horn single body volume can not be accomplished very little; Simultaneously, the size of loudspeaker cavity volume externally raise one's voice to its utmost sonority and tonequality impact huge, loudspeaker cavity is more regular, back cavity cavity is larger, and it is abundanter that low frequency part sound play by loudspeaker, and tonequality relatively will be better, otherwise, if loudspeaker back cavity is less, the acoustic low-pass composition of broadcasting will be fewer, sound will drier and more astringent, dull, do not have dynamics.
With it paradoxically, present smart mobile phone increasing market advocates thin money, and the space leaving loudspeaker cavity for is also fewer and feweri, and sound timbre relies on algorithm to promote few of space completely.If pursue good outer playback matter, the loud speaker SPK sound cavity volume that requirement certainly will be needed large, and high performance horn single body.The horn single body thickness that current mobile phone is conventional is generally 3.5mm, although horn single body producer is also continuing to optimize loudspeaker thickness, this thickness is minimum also all at more than 2.5mm so far.So thick loudspeaker are placed in handset shell, also need certain front and back cavity volume, add screen and the thickness of mainboard, want to accomplish ultra-thin, certainly will be very difficult.
Utility model content
The purpose of this utility model is to provide a kind of mobile phone, in order to solve the problem causing outer playback matter relatively poor because existing Mobile phone horn cavity is less.
To achieve these goals, the utility model provides a kind of mobile phone, comprises housing, and described handset shell is provided with earphone jack, and described mobile phone also comprises: the compatible circuit be connected with described earphone jack, and wherein, described compatible circuit comprises:
There is the earphone socket of input pin and output pin;
The audio coding decoding chip be connected with the input pin of described earphone socket, described audio coding decoding chip is according to the resistance value of the input pin of described earphone socket, determine the external equipment that described earphone socket inserts, described external equipment is external speaker or earphone;
The application processor chip be connected with described audio coding decoding chip;
The analog switch chip be connected with described application processor chip, the output pin of described analog switch chip is connected with the output pin of described earphone socket, wherein, the input pin of described analog switch chip comprises external speaker input pin and earphone input pin;
Described application processor chip is when described external equipment is external speaker, and the external speaker input pin controlling described analog switch chip is connected with described audio coding decoding chip;
Described application processor chip is when described external equipment is earphone, and the earphone input pin controlling described analog switch chip is connected with described audio coding decoding chip.
Wherein, the input pin of described earphone socket comprises: MIC pin, DET pin;
Described audio coding decoding chip comprises: HPdet pin and HPmic pin;
Wherein, described DET pin detects the resistance value of the input pin of described earphone socket, determines the external equipment that described earphone socket inserts, and is connected with described HPdet pin, and described MIC pin is connected with described HPmic pin.
Wherein, the output pin of described earphone socket comprises: R channel pin, left channel pin;
The output pin of described analog switch chip comprises: the first output pin and the second output pin;
Wherein, described first output pin is connected with described R channel pin, and the second output pin is connected with described left channel pin.
Wherein, the external speaker input pin of described analog switch chip comprises:
First input end of analog signal mouth and the second input end of analog signal mouth;
The earphone input pin of described analog switch chip comprises:
3rd input end of analog signal mouth and the 4th input end of analog signal mouth;
Described analog switch chip also comprises: control line pin;
Described application processor chip also comprises: the GPIO pin be connected with described control line pin;
Described application processor chip is when external equipment is external speaker, and the first input end of analog signal mouth being controlled described analog switch chip by control line pin is connected with described audio coding decoding chip with the second input end of analog signal mouth;
Described application processor chip is when external equipment is earphone, and the 3rd input end of analog signal mouth being controlled described analog switch chip by control line pin is connected with described audio coding decoding chip with the 4th input end of analog signal mouth.
Wherein, described audio coding decoding chip also comprises: HPL pin, HPR pin, SPKP pin and SPKN pin;
Described application processor chip is when external equipment is external speaker, and the first input end of analog signal mouth being controlled described analog switch chip by control line pin and the second input end of analog signal mouth are connected with the SPKP pin of described audio coding decoding chip and SPKN pin respectively;
Described application processor chip is when external equipment is earphone, and the 3rd input end of analog signal mouth being controlled described analog switch chip by control line pin and the 4th input end of analog signal mouth are connected with the HPL pin of described audio coding decoding chip and HPR pin respectively.
Wherein, described application processor chip is when external equipment is external speaker, controlled the first input end of analog signal mouth and the second input end of analog signal mouth of described analog switch chip by control line pin, be connected with the SPKP pin of described audio coding decoding chip and SPKN pin respectively by power amplifier.
Wherein, described earphone socket, described audio coding decoding chip and described analog switch chip all have a grounding pin.
Wherein, described external speaker comprises:
External Horn loudspeaker box;
The audio amplifier plug be connected with the earphone jack on described external Horn loudspeaker box and described housing.
Wherein, described audio amplifier plug comprises: the first contact and the second contact, and wherein, the first contact is connected with the left channel pin of described earphone socket and DET pin respectively; Second contact is connected with the R channel pin of described earphone socket, MIC pin and grounding pin respectively.
Wherein, described first contact is connected with two feelers of described external Horn loudspeaker box by wire with described second contact.
Wherein, described audio amplifier plug is two-period form plug, and described first contact is positioned at audio amplifier plug on the first paragraph of earphone socket, and described second contact is positioned at audio amplifier plug away from the second segment of earphone socket.
The utility model embodiment has following beneficial effect:
The mobile phone of the utility model embodiment, according to the resistance value of the input pin of earphone socket, determine that the external equipment that earphone jack is inserted is earphone or external speaker, thus the switching carried out between earphone play mode and external speaker play mode, achieve high-performance playback, improve outer playback amount and Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the compatible circuit figure of the utility model embodiment;
Fig. 2 is the structure chart of utility model embodiment external speaker;
Fig. 3 is the workflow diagram of utility model embodiment.
Description of reference numerals:
1-external speaker, 2-audio amplifier plug, the external Horn loudspeaker box of 3-.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with specific embodiment and accompanying drawing.
The utility model embodiment solves the problem causing outer playback matter relatively poor because existing Mobile phone horn cavity is less, and the utility model embodiment provides a kind of mobile phone, comprises housing, and housing is provided with earphone jack, and this mobile phone also comprises:
The compatible circuit be connected with earphone jack, wherein, as shown in Figure 1, compatible circuit comprises:
There is the earphone socket of input pin and output pin, further, the input pin of earphone socket comprises: MIC pin, DET pin, and the output pin of earphone socket comprises: R channel RIGHT pin, L channel LEFT pin, and earphone socket also comprises a grounding pin GND;
The audio coding decoding chip be connected with the input pin of earphone socket, audio coding decoding chip is according to the resistance value of the input pin of earphone socket, determine the external equipment that earphone socket inserts, external equipment is external speaker or earphone, wherein, audio coding decoding chip comprises: HPdet pin, HPmic pin, HPL pin, HPR pin, SPKP pin and SPKN pin;
In specific embodiment of the utility model, the resistance value of the input pin of the DET pin Test earphone socket of earphone socket, determine the external equipment that earphone socket inserts, and with the HPdet pin of audio coding decoding chip be connected, the HPmic pin of earphone socket is connected with the MIC pin of audio coding decoding chip.
The application processor chip be connected with audio coding decoding chip, concrete, be connected by bus between audio coding decoding with application processor chip, can transmission of control signals and data flow mutually;
The analog switch chip be connected with application processor chip, the input pin of analog switch chip comprises: external speaker input pin and earphone input pin, the output pin of analog switch chip comprises: the first output pin OUT1 and the second output pin OUT2, further, external speaker input pin comprises: the first input end of analog signal mouth IN1 and the second input end of analog signal mouth IN2, and earphone input pin comprises: the 3rd input end of analog signal mouth IN3 and the 4th input end of analog signal mouth IN4;
In specific embodiment of the utility model, the output pin of analog switch chip is connected with the output pin of earphone socket, concrete, the first output pin OUT1 is connected with the R channel RIGHT pin of earphone socket, and the second output pin OUT2 is connected with the L channel LEFT pin of earphone socket.
In specific embodiment of the utility model, analog switch chip also comprises: control line SELECT pin, and is connected with the GPIO pin of application processor chip by control line pin.Application processor chip, when external equipment is external speaker, is connected with the SPKP pin of audio coding decoding chip and SPKN pin respectively by the first input end of analog signal mouth of control line pin control simulation switch chip and the second input end of analog signal mouth;
Application processor chip, when external equipment is earphone, is connected with the HPL pin of described audio coding decoding chip and HPR pin respectively by the 3rd input end of analog signal mouth of control line pin control simulation switch chip and the 4th input end of analog signal mouth.
In addition, in specific embodiment of the utility model, can also increase by a power amplifier, as high-performance D class loudspeaker power amplifier between the SPKP pin of external speaker input pin and audio coding decoding chip and SPKN pin.Application processor chip is when external equipment is external speaker, by the first input end of analog signal mouth and the second input end of analog signal mouth of control line pin control simulation switch chip, be connected with the SPKP pin of audio coding decoding chip and SPKN pin respectively by power amplifier.
The compatible circuit of the utility model embodiment is by checking the resistance value of external equipment, determine that the external equipment of plugged earphone jack is earphone or external speaker, thus the switching carried out between earphone play mode and external speaker play mode, realize high-performance playback.
Illustrate the operation principle of the utility model embodiment below.
In specific embodiment of the utility model, as shown in Figure 2, external speaker 1 comprises: external Horn loudspeaker box 3; The audio amplifier plug 2 be connected with the earphone jack on external Horn loudspeaker box 3 and handset shell; Further, audio amplifier plug 2 is two-period form plug, and audio amplifier plug 2 comprises the first contact and the second Liang Ge contact, contact, first contact is positioned at audio amplifier plug 2 on the first paragraph of earphone socket, second contact is positioned at audio amplifier plug 2 away from the second segment of earphone socket, and two contacts are connected with two feelers of external Horn loudspeaker box 3 by wire, thus realizes two haptic elements speech simulation signal of telecommunication being introduced external Horn loudspeaker box, driving loudspeaker work, and produce sound.
The resistance value that loudspeaker commonly used by current mobile phone is generally all less than or equal to 8 ohm, after the audio amplifier plug 2 plugged earphone jack of external speaker 1, the contact on audio amplifier plug 2 top is connected with the DET pin of earphone socket and L channel LEFT pin, and another contact of audio amplifier plug 2 is connected with the MIC pin of earphone socket, R channel RIGHT pin and ground connection GND pin.Because the DET pin of earphone socket is connected with the HPdet pin of audio coding decoding chip, therefore, the resistance value that the HPdet pin of codec chip detects is the earth impedance value of resistance value in external Horn loudspeaker box between horn single body two haptic elements and horn single body, and resistance value is less than or equal to 8 ohm.Further, earth impedance due to earphone left and right acoustic channels is generally 32 ohm, minimumly be not less than 16 ohm, therefore the codec chip resistance value that can arrive according to HPdet pin senses, the external equipment differentiating plugged earphone jack is external speaker or earphone.
As shown in Figure 3, external speaker or earphone are inserted into earphone jack by user;
By Plug Action, codec chip has detected that plug inserts, and detect the earth impedance value of earphone socket input pin DET pin by HPdet pin;
The resistance value that HPdet pin detects by codec chip and pre-set threshold value compare, and draw a comparative result, assuming that pre-set threshold value is 10 ohm;
When comparative result be resistance value be less than 10 ohm time, then judge that the external equipment of plugged earphone jack is as external speaker, when comparative result be the resistance value detected be greater than 10 ohm time, then judge that the external equipment of plugged earphone jack is earphone;
If the external equipment of plugged earphone jack is external speaker, voice signal is switched to loudspeaker channel and voice signal and exports from the SPKP pin of codec chip and SPKN pin by codec chip, and result of determination is fed back to AP chip simultaneously; If the external equipment of plugged earphone jack is earphone, voice signal is then switched to earphone passage and voice signal and exports from the HPL pin of codec chip and HPR pin by codec chip, result of determination is fed back to AP chip simultaneously;
When the external equipment that the judged result that codec chip feeds back is plugged earphone jack is external speaker, AP chip is then connected with the SPKN pin of codec chip and SPKP pin respectively by IN1 and IN2 of control line pin control simulation switch chip, now, voice signal is changed through analog switch chip, is played back by external speaker; When the external equipment that the judged result that codec chip feeds back is plugged earphone jack is earphone, AP chip is then connected with the HPR pin of codec chip and HPL pin respectively by IN3 and IN4 of control line pin control simulation switch chip, now, voice signal is changed through analog switch chip, is played back by earphone.
The mobile phone of the utility model embodiment, by detecting the resistance value of the external equipment of plugged earphone jack, judge that the external equipment of plugged earphone jack is earphone or external speaker, thus the switching realized between earphone play mode and external speaker play mode, achieve high-performance playback, improve outer playback amount.
In specific embodiment of the utility model, can, according to different mobile phone configuration design many moneys Horn loudspeaker box cavitys, user be allowed to have more selection.Meanwhile, Horn loudspeaker box monomer can also rotate freely and freely dismantles, can the direction of propagation of unrestricted choice sound, enhances Consumer's Experience.
The mobile phone of the utility model embodiment, when the outer mode playback of needs, by external speaker plugged earphone jack, if do not need outer mode playback, then automatically switches to vibrating mode.
The mobile phone of the utility model embodiment, utilizes existing earphone jack, realizes high-performance playback, meanwhile, has effectively evaded the limitation of loudspeaker and cavity layout on mobile phone thereof, has had very strong use value, improve Consumer's Experience.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (11)

1. a mobile phone, comprises housing, and described housing is provided with earphone jack, it is characterized in that, described mobile phone also comprises: the compatible circuit be connected with described earphone jack, and wherein, described compatible circuit comprises:
There is the earphone socket of input pin and output pin;
The audio coding decoding chip be connected with the input pin of described earphone socket, described audio coding decoding chip is according to the resistance value of the input pin of described earphone socket, determine the external equipment that described earphone socket inserts, described external equipment is external speaker or earphone;
The application processor chip be connected with described audio coding decoding chip;
The analog switch chip be connected with described application processor chip, the output pin of described analog switch chip is connected with the output pin of described earphone socket, wherein, the input pin of described analog switch chip comprises external speaker input pin and earphone input pin;
Described application processor chip is when described external equipment is external speaker, and the external speaker input pin controlling described analog switch chip is connected with described audio coding decoding chip;
Described application processor chip is when described external equipment is earphone, and the earphone input pin controlling described analog switch chip is connected with described audio coding decoding chip.
2. mobile phone according to claim 1, is characterized in that, the input pin of described earphone socket comprises: MIC pin, DET pin;
Described audio coding decoding chip comprises: HPdet pin and HPmic pin;
Wherein, described DET pin detects the resistance value of the input pin of described earphone socket, determines the external equipment that described earphone socket inserts, and is connected with described HPdet pin, and described MIC pin is connected with described HPmic pin.
3. mobile phone according to claim 2, is characterized in that,
The output pin of described earphone socket comprises: R channel pin, left channel pin;
The output pin of described analog switch chip comprises: the first output pin and the second output pin;
Wherein, described first output pin is connected with described R channel pin, and the second output pin is connected with described left channel pin.
4. the mobile phone according to Claims 2 or 3, is characterized in that, the external speaker input pin of described analog switch chip comprises:
First input end of analog signal mouth and the second input end of analog signal mouth;
The earphone input pin of described analog switch chip comprises:
3rd input end of analog signal mouth and the 4th input end of analog signal mouth;
Described analog switch chip also comprises: control line pin;
Described application processor chip also comprises: the GPIO pin be connected with described control line pin;
Described application processor chip is when external equipment is external speaker, and the first input end of analog signal mouth being controlled described analog switch chip by described control line pin is connected with described audio coding decoding chip with the second input end of analog signal mouth;
Described application processor chip is when external equipment is earphone, and the 3rd input end of analog signal mouth being controlled described analog switch chip by described control line pin is connected with described audio coding decoding chip with the 4th input end of analog signal mouth.
5. mobile phone according to claim 4, is characterized in that, described audio coding decoding chip also comprises: HPL pin, HPR pin, SPKP pin and SPKN pin;
Described application processor chip is when external equipment is external speaker, and the first input end of analog signal mouth being controlled described analog switch chip by control line pin and the second input end of analog signal mouth are connected with the SPKP pin of described audio coding decoding chip and SPKN pin respectively;
Described application processor chip is when external equipment is earphone, and the 3rd input end of analog signal mouth being controlled described analog switch chip by control line pin and the 4th input end of analog signal mouth are connected with the HPL pin of described audio coding decoding chip and HPR pin respectively.
6. mobile phone according to claim 5, it is characterized in that, described application processor chip is when external equipment is external speaker, controlled the first input end of analog signal mouth and the second input end of analog signal mouth of described analog switch chip by control line pin, be connected with the SPKP pin of described audio coding decoding chip and SPKN pin respectively by power amplifier.
7. mobile phone according to claim 6, is characterized in that, described earphone socket, described audio coding decoding chip and described analog switch chip all have a grounding pin.
8. mobile phone according to claim 7, is characterized in that, described external speaker comprises:
External Horn loudspeaker box;
The audio amplifier plug be connected with the earphone jack on described external Horn loudspeaker box and described housing.
9. mobile phone according to claim 8, is characterized in that, described audio amplifier plug comprises: the first contact and the second contact, and wherein, the first contact is connected with the left channel pin of described earphone socket and DET pin respectively; Second contact is connected with the R channel pin of described earphone socket, MIC pin and grounding pin respectively.
10. mobile phone according to claim 9, is characterized in that, described first contact is connected with two feelers of described external Horn loudspeaker box by wire with described second contact.
11. mobile phones according to claim 9, is characterized in that, described audio amplifier plug is two-period form plug, and described first contact is positioned at audio amplifier plug on the first paragraph of earphone socket, and described second contact is positioned at audio amplifier plug away from the second segment of earphone socket.
CN201420423563.7U 2014-07-29 2014-07-29 A kind of mobile phone Active CN204069063U (en)

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CN201420423563.7U CN204069063U (en) 2014-07-29 2014-07-29 A kind of mobile phone
KR1020177005610A KR101868542B1 (en) 2014-07-29 2014-10-15 Mobile terminal
US15/328,492 US20170353799A1 (en) 2014-07-29 2014-10-15 Mobile Terminal
EP14881598.8A EP3177031A4 (en) 2014-07-29 2014-10-15 Mobile terminal
PCT/CN2014/088667 WO2015117357A1 (en) 2014-07-29 2014-10-15 Mobile terminal
JP2017504760A JP6425796B2 (en) 2014-07-29 2014-10-15 Mobile terminal

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JP6425796B2 (en) 2018-11-21
KR20170039254A (en) 2017-04-10
WO2015117357A1 (en) 2015-08-13
US20170353799A1 (en) 2017-12-07
KR101868542B1 (en) 2018-06-19

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